SAB88C166 Datasheet, PDF (55/58 Pages) Siemens Semiconductor Group – 16-Bit CMOS Single-Chip Microcontrollers with/without oscillator prescaler with 32 KByte Flash EPROM

SAB 88C166(W)
AC Characteristics (cont’d)
External Bus Arbitration
V_CC = 5 V ± 10 %; V_SS = 0 V
T_A = 0 to + 70 ˚C for SAB 88C166(W)-5M
C_L (for Port 0, Port 1, Port 4, ALE, RD, WR, BHE, CLKOUT) = 100 pF
Parameter
Symbol
Max. CPU Clock
= 20 MHz
Variable CPU Clock Unit
1/2TCL = 1 to 20 MHz
min.
max.
min.
max.
HOLD input setup time t₆₁ SR 20
–
20
–
ns
to CLKOUT
CLKOUT to HLDA high
or BREQ low delay
t₆₂ CC –
50
–
50
ns
CLKOUT to HLDA low
or BREQ high delay
t₆₃ CC –
50
–
50
ns
Other signals release
t₆₆ CC _–
25
–
25
ns
Other signals drive
t₆₇ CC _{– 5}
35
–5
35
ns
Semiconductor Group
54